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The XMM-Newton Survey Science Centre identifdication (XID) programme

The XMM-Newton Survey Science Centre identifdication (XID) programme. Xavier Barcons Instituto de Física de Cantabria (CSIC-UC) Santander, Spain. … on behalf of the SSCentre XID working group. Astrophysikalisches Institut Potsdam (Germany): Y. Hashimoto, G. Lamer, G. Szokoly, A. Schwope

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The XMM-Newton Survey Science Centre identifdication (XID) programme

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  1. The XMM-Newton Survey Science Centre identifdication (XID) programme Xavier Barcons Instituto de Física de Cantabria (CSIC-UC) Santander, Spain

  2. … on behalf of the SSCentre XID working group • Astrophysikalisches Institut Potsdam (Germany): Y. Hashimoto, G. Lamer, G. Szokoly, A. Schwope • Centre d'Etude Spatiale des Rayonnements (France): N. Webb • Institute of Astronomy, Cambridge (UK): R.G. McMahon, W. Yuan, A.C. Fabian, C.S. Crawford • Instituto de Astrofísica de Canarias, Tenerife (Spain):I. Pérez-Fournon • Instituto de Física de Cantabria, Santander (Spain): X. Barcons, F.J. Carrera, M.T. Ceballos, S. Mateos • Subaru Telescope: K. Sekiguchi • Max-Planck-Institut fuer extraterrestriche Physik (Germany): T. Boller, G. Hasinger, W. Pietsch • Mullard Space Science Laboratory, UCL (UK): M.S. Cropper, K.O. Mason, M.J. Page, S. R. Rosen • Observatoire Astr de Strasbourg (France): C. Motch, P. Guillout, L. Mirioni, I. Negueruela, M. Pakull • Osservatorio Astronomico di Brera, Milano (Italy): T. Maccacaro, R. Della Ceca, P. Severgnini • University of Bristol (UK): D.M. Worrall, M. Bremer, M. Birkinshaw • University of Central Lancashire (UK): G.E. Bromage, B.J.M. Hassall • University of Leicester, (UK): M.G. Watson, J.P. Pye, D. Baskill, G.C. Stewart, T.P. Roberts, J.P. Osborne, N. Schurch, P.J. Wheatley, M.J. Ward, R.S. Warwick, J.A. Tedds • XMM Science Operations Centre, (Spain): N. Schartel • Harvard Smithsonian Astrophysical Observatory: M. Elvis Xavier Barcons, IFCA, Santander, Spain

  3. Index • The XID programme: goals and strategy • The imaging programme • The extragalactic core programme: • The faint sample (almost nothing to report) • The medium sample • The bright sample (talk by R. Della Ceca) • The Galactic Plane sample (poster by C. Motch) • Other activities • Outlook Xavier Barcons, IFCA, Santander, Spain

  4. The XMM-Newton serendipitous sky survey • Every new XMM-Newton pointing discovers ~30-150 serendipitous X-ray sources. • About 50,000 new X-ray sources/year • Overall goal: build up a catalogue with all serendipitous X-ray sources and their likely identifications Xavier Barcons, IFCA, Santander, Spain

  5. Probable identification + = Optical/IR photometric imaging The XID strategy: statistical identifications X-ray properties Need a large training sample with proper spectroscopic id’s: the core programme Xavier Barcons, IFCA, Santander, Spain

  6. XID programme details • Core programme (1000 sources/sample): • High b faint sample (~10-15 erg cm-2 s-1) • High b medium sample (~10-14 erg cm-2 s-1) • High b bright sample (~10-13 erg cm-2 s-1) • Galactic Plane Sample (~7 10-15 erg cm-2 s-1) • Imaging programme (u,g’,r’,i’,Z,H): a large number of XMM-Newton observations Xavier Barcons, IFCA, Santander, Spain

  7. XID ground-based resources • Optical/IR imaging: • INT 2.5m with WFC • ESO 2.2m with WFI • Subaru 8.3m with SuprimeCam & FOCAS • Optical spectroscopy • WHT 4.2m with ISIS • WHT 4.2m with WYFFOS/AUTOFIB2 • TNG 3.5m with DOLORES • NOT 2.5m with ALFOSC • Subaru 8.3m with FOCAS Xavier Barcons, IFCA, Santander, Spain

  8. XID observational strategy Xavier Barcons, IFCA, Santander, Spain

  9. AXIS: An XMM-Newton International Survey • International Time Project (ITP) approved by the Comité Científico Internacional for years 2000 and 2001: total of 85 nights spread in 4 telescopes • Major boost to XID programme in: • Imaging programme • High galactic latitude medium sample • High galactic latitude bright sample • Galactic Plane survey Xavier Barcons, IFCA, Santander, Spain

  10. Imaging programme XMM-Newton imaged fields in various filters Last Updated: 28 October 2001 Optical: INT2.5m/WFC + ESO2.2m/WFI Near IR: INT2.5m/CIRSI Xavier Barcons, IFCA, Santander, Spain

  11. Depth of images Galaxies Stars SDSS Xavier Barcons, IFCA, Santander, Spain

  12. Seeing distribution Xavier Barcons, IFCA, Santander, Spain

  13. Astrometric calibration • 100-200 APM or USNO stars per CCD; each of 4 CCD chips is fit independently • Median rms 0.25”; believed due to internal errors in external catalogue and proper motions Chip-4 Xavier Barcons, IFCA, Santander, Spain

  14. Automated Photometric calibration The majority of the images have photometric calibration error < 0.1 mag Currently exploring systematics due to variations in zero-point and extinction constants Xavier Barcons, IFCA, Santander, Spain

  15. Public release of XID optical images • Fully-reduced CCD mosaics covering almost entire EPIC FOV in various filters • Astrometrically and photometrically calibrated images and optical source catalogues • Release of optical images corresponding to public XMM-Newton data Release by end of January 2002 Xavier Barcons, IFCA, Santander, Spain

  16. Spectroscopic identifications Search for candidate counterparts i’-band sources within either: 5 (statistical) or 5 arcsec • Bright Sample: >95% success with 1 single candidate • Medium Sample: 90% success, 3/4 with single candidate • Galactic Plane: • |b|~10-20º, 85% success, 1/2 with single candidate • |b|~0-10º, very large star density: no unique candidate Xavier Barcons, IFCA, Santander, Spain

  17. High-b identifications 119 BLAGN 23 NELG 15 Galaxies 2 BLLAC 41 Stars Xavier Barcons, IFCA, Santander, Spain

  18. The high-b medium sample • Flux limit 210-14 erg cm-2 s-1 (0.5-4.5 KeV) • Source density ~110 sources deg-2 • 30 fields in the North: 498 X-ray sources • 122 identifications (25%) • By ~March 2002, expect a sample of 15 fields (212 X-ray sources) identified to ~90% • ~a few % of X-ray sources do not show optical counterpart within ~22.5mag Xavier Barcons, IFCA, Santander, Spain

  19. Medium Sample: preliminary results • 2 fields (Mkn205 and G133-69 Pos_2), 29 X-ray sources over 0.26 deg-2: • 19 Broad Line AGN (incl 2 BAL QSOs) • 6 Narrow-Line AGN • 1 Abs line Galaxy (NGC 4291) • 1 Active Coronal Star • 2 Unidentified (1 unobserved, 1 very faint) Xavier Barcons, IFCA, Santander, Spain

  20. MS: Hardness ratios HR1= 0.5-2.0 keV  2.0-4.5 keV HR2= 2.0-4.5 keV  4.5-10 keV Marginal evidence for NLAGN being absorbed BLAGN BLAGN have ~2 at 0.5-4.5 keV and ~1.6 at 4.5-10 keV Xavier Barcons, IFCA, Santander, Spain

  21. ASCA 2-10 keV ROSAT 0.5-2 keV MS: The X-ray source population Xavier Barcons, IFCA, Santander, Spain

  22. Field Ra Dec l b G 21.5 -09 18h33 -10° 34 21.5 -0.9 Ridge 3 18h27 -11°29 20.0 0.0 Ridge 4 18h28 -11°00 20.4 0.0 ZAnd 23h33 +48°49 109 -12.1 Field Exposure time Area GRB 001025 08h36 -13°04 237 +16.7 G21.5-09 30 ksec ~ 0.36 deg2 Ridge 3 9.6 ksec ~0.18 deg2 The Galactic Plane sample Xavier Barcons, IFCA, Santander, Spain

  23. Field G21.5-09 Ridge 3 Number of sources 77 21 Stellar coronae 18 (23%) 14 (66%) Accreting sources 1 0 Extragalac. sources 1 0 Unidentified 57 (74%) 7 (33 %) The Galactic plane at |b|=0º Xavier Barcons, IFCA, Santander, Spain

  24. Ha flux versus X-ray flux for ROSAT and XMM Me stars Me Stars Rosat Cygnus Region (Motch et al. 1997) G21.5-09 & Ridge 3 Xavier Barcons, IFCA, Santander, Spain

  25. The Galactic Plane landscape • Active coronae exhibit soft X-ray spectra (HR2 < ~ 0) • Most soft X-ray sources have active coronae counterparts • The population of Me stars seen by XMM-Newtin is similar to that detected by ROSAT, just seen farther away…. • The Me to K-A star ratio is ~ 30%, similar to that of ROSAT • No Cataclysmic Variable has been yet detected down to an estimated R magnitude of ~ 19. Xavier Barcons, IFCA, Santander, Spain

  26. SS397 The Be accreting binary SS397 Xavier Barcons, IFCA, Santander, Spain

  27. SS397: a Be+NS/WD accreting binary? • Too X-ray luminous to be an isolated Be0.5 star: binary • Hard X-ray spectrum (=1.5 or kT= 9 keV) • LX~1032 erg s-1, very low for a NS accreting binary • A very good candidate to Be+WD binary Xavier Barcons, IFCA, Santander, Spain

  28. Other on-going or planned XID activities • Pilot cluster survey • Pilot hard X-ray source survey • EPIC astrometry studies (poster by J. Tedds & Mike Watson) • X-ray spectral templates / X-ray colours of various populations • Bi-variate flux distributions Xavier Barcons, IFCA, Santander, Spain

  29. Special thanks to... • Mike Watson, Jonathan Tedds: X-ray sources, overall managing • Mat Page: Fibre spectroscopy • Francisco Carrera: AXIS programme and much more • Richard McMahon: Imaging programme • Christian Motch: Galactic plane survey • Axel Schwope: Southern observations • Tommaso Maccacaro, Roberto Della Ceca: Bright sample Xavier Barcons, IFCA, Santander, Spain

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